Selecting apparatus and system.



A. F. DIXON. SELECTING APPARATUS AND SYS-TEM. APPUCAUON man MAY 24., ma.

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'tiff MEENE Specificatioi. of Letters E'ateii'.

kV -5 Application filed 'ilfay 24;, 1815. Serial lle. 30,6955.

To all whom E may @mow/fi:

Be it "known that l, g es .llReDERlCx DIXON, e eilizeii f the UnitedStates, `residing at Neiva in lille county ei Essex unl Stale el New.lei'segg lizwe veel; ll ceiniii new and useful lmpi'eveuieiits iiiSelecli Appmntus and klyslems, elv which the fellowing is e lilill.'aelem', cencise, and exact flese iileien Vliisinvenion relates ioselecting appie i'algiis and eyslzeii -1, find ite principal olijiecl.is *ze ile mi impro amical type. n

general features, c cuifrent impulse i Damme, wheres ,Stenl of "lleeleciem Vln aceeialzliee 'willi the iiveniieli emile eelleeli?` nl* l''br in an epm" successively l into epeimi eetuzisieii, @imggfrellei* amiselec* above mil eliges .will lle fully willi e,y

Aese'fiplior, angl malins? i lowing mere 'ezi'iily un .fer use mentsbeing sllei'ii n I The mechanism, which ma? be ell ei'liei: einwenigcelle-cl, oi' (lis 'lou el? bolli ,Sin'ililtzmeeusly. Compiieee :1Li'lotzi'tnlole memA ber 5 loosely nlmmel ,upon A silizillle shall;

rG. Member i." isfpieelcibly in the ferm el fr partiel (lieb: andczulies, nem' ibs circule ference n plui'el l ewil'cli membeis el'Contacts, each ei: which is adapted te lie 4G engaged by n climcempleliiig ii'ieiulgre'f to ferm a :plurality of curi-ent celleetiiiger disri'buti si 'leliex These con'ects c0mprise e plm' y of pins lll,12, 13,1% und 15, which, for. Conveniencev7 vwill be Called l5collecting pins, zuid a plurality of cempanien pins 21,22, 23, il imdwhich will beY designated clisti'ibliting pins. Collecting pins l1 to l5inclusive are iespectively associated with si current centiollei` made'up of pole changers 3l, 39 33, 3l and 35, each pin being cennectefl tothe movable dontaet eli its corresponding pole changer. The left-bamiiiXecl contacts of all of the pole clieiigeis me counseled the pesitivepole @if a grounded and clificlefl Source el eiiii'gy 536, :incl "alleriglx'teliaml l'xecl een,- 'lzu s of these pole olv? ei-s :we eeuuevtecll i m the negative pele m this source. Enel). U ille disaributmg plusill. lo 25 in 'lieeue respectively miixxeclell te @Mmm i muy comme!appaialile, ne, :um

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Operation li line eenlzaet thereof fiom i1. fixed i ille-wise liiis ll'be l5 inclusive le form :i plu zility el euiient collecting s\i'iL'-liee.I mill pins lte inelueiw A 'nliy el cuiie'nt (lisinimliiigjswitches by eopera'tiiig respectively Willi 011e mi? pair Oli circuitCompleting meiilneie 'in me 'lioim el sont et springs 55 and 6G. Theconducting pins ae sueessively bi'ougl'i'l; iiipairs inte eperativefelation with Springs G5 2mal 6G, and are engaged sind (liseiifsgefl bythese springs imik the iiii'lifuioii Gessm'iion el ageiiev liieugli the@el lei/ice.

pulses 'i im nella l m@ member 5i.,

o te ferm :i pluJ which are adapted to engage the teeth ot' ratchetwheel The energy required to operate member 5 under the control otescapement pallets is provided by a spring securedA at one end to anydesired form ot anchor, and at the other end to member 5 through a pin76. This spring tends to rotate member 5 and, through pawl 56, ratchetwheel 55 in the direction of the arrow, and when, after having beenallowed to do so, as will be presently explained, it is again brought tofull tension, and the member 5 is returned to its normal position withsurface 59 engaging stopA 60 by a restoring electromagnet 77. Thiselectromagnet is provided with u spring-tensioned armature 78 pivoted at81. Armature 78 is provided with an extension 79 which is adapted toengage pin 76 when armature 78 is attracted to return member 5, asmentioned above. During the return of member ratchet wheel 55 isprevented from following by stop spring 58, so that while member 5 has areciprocating movement, ratchet wheel 55 moves always in the samedirection. Armature 78 also controls the operation of a switch 80.

There are also provided a pair of line relays 85 and 8G, a restorationcontrolling relay 87, and a clearout relay 88. T he windings of relays85 and 86 provide parallel paths from ground to contact 52 and through asuitable resistance 90 to contact 51 and transmission line L. Resistance90 is so proportioned that it is approximately equal to the resistanceof line L plus the resistance of the windings of whateverelectromechanical devices may be connected therein at a distant station.Relay 85 is provided with apair of armatures 91` and 92, and relay 86 isprovided with a single armature 93. Armatures 91 and 93 are grounded andcoperate with front contacts which are connected together,` to one ofthe elements ot switch 62 and to one terminal of the winding otelectromagnet 67- and one terminal of the winding of electromagnet 77.Armature 92 is connected to spring 66 and coperates with a front contactwhich is' connected to a grounded source of energy 94,. Contact 53 ofline switch 50 is connected to spring 65.

One element of switch 62 may be grounded, as hereinafter described, andthe other element is connected to a fixed contact 100 coperating. with amovable contact 101 controlled by and connected to one terminal of thewinding of relay 87, the other terminal of which is connected to agrounded source ot' energy 102. Relay 87 is provided with two armatures103 and 104. Armature 103 .y

coperates with movable contact 101, and armature 101coperates with afront contact connected to one of the terminals of the winding ofelectromagnet 77. One terminal ot' the winding o't relay 88 is connectedto one of the elements or' switch 80, the other element of which isgrounded, and the other terminal of this winding is connected to agrounded source olf energy 105. Relay 88 is likewise provided with apair .of armatures 106 and 107. .Armature106 is grounded and'coperateswith a back Contact connected,.to armatures 103 and 10-1 of relay 87,while, armature 107 is connected to one element of a clear-out switch108, the other vided with polarized relays similar to and 86 anddistributing apparatus and selecting mechanism, such as hereinbeforedescribed. Normally, all of the apparatus is in the condition shown inthe drawing with springs 65 and 66 engaging pins 11 and 21,v

respectively, and contact 51 of switch .5G-in engagement with contact`When the key or automatically controlled pole changers 31 to 35inclusive are selectively 'actuated and line switch 50 is operated,'sothat contact 51 discngages contact 52 and engages contact 5213, acircuit is completed from thepositive or negative pole of source 36through the movable Contact of pole changer 31,y pin 11, spring 65,contacts 53 and 51, and in parallel through transmission line L and thedistant apparatus therein( o ground, and resistance and the windings ofrelays 85 and 86 to ground.

Assuming that the movable contact of pole changer 31 has been moved fromthe right to the lett-hand contact,'the current flowing in the circuitjust traced will operate only relay 85, which Will pull up fitsarmatures 91 and 92. Armature S11/completes 'a circuit from groundthrough the Winding of electromagnet 67 to grounded source of energy 68,and armature 69 thereof 'is attracted.. Armature 92 completesy a circuitfrom grounded source 94througb spring 66, pin 21,-and winding ofelectromagnet 4-1 to'ground, causing this electro-v magnet to performits proper functionin (3m-ren 1, yelay 87 .35 imam pms and L0 11 puis byv "kation mmm@ ion o le@ Hmmm 0 cumuli; im' le relay imm grounded 105gu'm'zgh clealout Swch 10S,

. L11 la 213ml meals@ described, except that polarized relays 85 and 86are selectively actuated by current from line L instead of from source36, and

the condition of line switch 50 is unaltered.

The invention claimed is:

l. A selecting system comprising an elec-y vfor simultaneouslyvactuating said circuit closers and causing a step-by-step movement ofsaid" switch members to distribute current determined by the currentimpulses from over the line.

2. A selecting system comprising current control means,anelectromechanical current-distributing mechanism associated therewith,a plurality of collecting switch members carried by said mechanism, apair of circuit closers associated with said members, and means foractuating said circuit closers and causing a step-by-step movement ofsaid mechanism whereby said members are brought 'into engagement withsaid tromechanicalI selecting mechanism, a plurality of circuit contactsassociated therewith, means coperating with said contacts f.

to complete energizing circuits for said mechanism, and an'electromechanical device" for simultaneously actuating vsaid means andcausing a step-by-step movement of said contacts to distribute the ef-'fects of a Succession of current impulses.

4. Av selecting apparatus comprising a plurality of contactscarried by arotatable member, an escapement Wheel I associated with said member,4 acircuit completing member adapted to coperate with saidcontacts, anescapement lever coperating With said Wheel, and an electromagnet forsimultaneously actuating said circuit completing member and saidesca-pement lever for causing said circuit completing member tosuccessively. act upon .said lcontacts.

In witness whereof, I hereunto subscribe my name this 21st day of MayA.V D., 1915.

AMos' FREDERICK DIXON'.

